Page 16 - E-MODUL- deaidelia
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3) (p×q) – (p×r) = p× (q – r)
4) (p×r) – (q×r) = (p – q) × r
Dari hasil pembahasan di atas, Anda perhatikan contoh-contoh berikut:
Contoh 1 : (4 × 6) + (5 × 6) = (4 + 5) × 6
= 9 × 6
= 54
Contoh 2 : (4 × 5) +(4 × 6) = 4 × ( 5 + 6)
= 4 × 11
= 44
Contoh 3 : ((-3) × 5) – ((-3) × 7) = (-3) × (5 – 7)
= (-3) × (-2)
= 6
Contoh 4 : (3 - (-2)) × ((-4) - (-2)) = (3 – (-4)) × (-2)
= (3 + 4) × (-2)
= 7 × (-2)
= -14
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